No One Understands

Here I sit at 645AM. My coffee is still brewing, one child is sleeping, the other is laying in bed with DH. SHE decided to wet her bed at 5AM and get in bed with us. Wish it was just that simple. Of course 'I'm HUNGRY' comes out of her mouth every .5 seconds followed by screaming fits b/c DH nor I are getting out of bed. Sick of listening to it, I get out of bed and hop in the shower to drowned out her screaming, fearful of her waking C'man up.
She now is laying quietly upstairs and everyone else is asleep. But my real frustration for today is once again a quick trip to Omaha has to be cancelled due to a Psychologist appt that DH and his brothers are to attend. It's like good GRIEF how much longer will we continue to put our life on hold.
Let me back track. Things are no better then they were 5 weeks?? ago. MIL stayed with us this past weekend, FIL still thinks nothing is wrong with him. He stopped taking his medicine therefore causing the doc to give him injectable. I think that's a great idea, however he doesn't. No surprise there I guess. What is so frustrating is that manic people do not think they have a problem, that's a lot of the problem. But then you throw in a marriage that has been on the brinks for decades, 2 ultra-dependable sons that try to solve all the problems, 2 sons that have removed themselves from the situations, and we get where we are today.
I really am at a loss at what to even suggest or do. I'm to the point where I think it's time the boys tell them that while we love you both it's time for you 2 to sort it out. If that means you separate, so be it. If that means you both live here, then so be it, but we have got to come to some resolution. We will not pick sides, we will not continue to run over here at all hours of the day (yes that means at night too) But something has got to change. We have dealt with this 24/7 for over 6 weeks now with absolutely NO headway accept more frustration in the families left at home. AKA US.
Do I have any readers (haha) that can relate? Offer any form of advice? How long will life continue like this for us all? Last night we ALL went out to eat. Our family, FIL and MIL and 2 nieces. FIL ate and then sat with his hands in his face the rest of the time. He mumbled things here and there and a couple times did smile at comments made by our kids, nieces, etc then he started going off about how the courts want him to get shock therapy and chemo!! Yeah I think there is a slight misreading there on the chemo part.
It makes me so sad to see this, it really does. To see ones family just crumble b/c of mental illness is one tough pill to follow. Then you start to wonder, well does HE have the problem or is it his wife!? As my FIL said last night 'no one understands' to which I replied: 'You are absolutely right!! That's why we have medical professionals that do that tell us what we need to do so that either we can understand, or at least get to the point in our life where we can function'.